/*----------------------------------------\
 |      Cross Browser Tree Widget 1.1      |
 |-----------------------------------------|
 | Created by Emil A. Eklund (eae@eae.net) |
 |    For WebFX (http://webfx.eae.net/)    |
 |-----------------------------------------|
 | This script is  provided as is  without |
 | any warranty whatsoever. It may be used |
 | free of charge for non commerical sites |
 | For commerical use contact  the  author |
 | of this script for further details.     |
 |-----------------------------------------|
 | Created 2000-12-11 | Updated 2001-09-06 |
 \----------------------------------------*/
var webFXTreeConfig = {
    rootIcon:'media/images/Class.gif',
    openRootIcon:'media/images/Class.gif',
    folderIcon:'media/images/Class.gif',
    openFolderIcon:'media/images/Class.gif',
    fileIcon:'media/images/Class.gif',
    iIcon:'media/images/I.png',
    lIcon:'media/images/L.png',
    lMinusIcon:'media/images/Lminus.png',
    lPlusIcon:'media/images/Lplus.png',
    tIcon:'media/images/T.png',
    tMinusIcon:'media/images/Tminus.png',
    tPlusIcon:'media/images/Tplus.png',
    blankIcon:'media/images/blank.png',
    defaultText:'Tree Item',
    defaultAction:'javascript:void(0);',
    defaultTarget:'right',
    defaultBehavior:'classic'
};
var webFXTreeHandler = {
    idCounter:0,
    idPrefix:"webfx-tree-object-",
    all:{},
    behavior:null,
    selected:null,
    getId:function () {
        return this.idPrefix + this.idCounter++;
    },
    toggle:function (oItem) {
        this.all[oItem.id.replace('-plus', '')].toggle();
    },
    select:function (oItem) {
        this.all[oItem.id.replace('-icon', '')].select();
    },
    focus:function (oItem) {
        this.all[oItem.id.replace('-anchor', '')].focus();
    },
    blur:function (oItem) {
        this.all[oItem.id.replace('-anchor', '')].blur();
    },
    keydown:function (oItem) {
        return this.all[oItem.id].keydown(window.event.keyCode);
    },
    cookies:new WebFXCookie()
};
/*
 * WebFXCookie class
 */
function WebFXCookie() {
    if (document.cookie.length) {
        this.cookies = ' ' + document.cookie;
    }
}
WebFXCookie.prototype.setCookie = function (key, value) {
    document.cookie = key + "=" + escape(value);
}
WebFXCookie.prototype.getCookie = function (key) {
    if (this.cookies) {
        var start = this.cookies.indexOf(' ' + key + '=');
        if (start == -1) {
            return null;
        }
        var end = this.cookies.indexOf(";", start);
        if (end == -1) {
            end = this.cookies.length;
        }
        end -= start;
        var cookie = this.cookies.substr(start, end);
        return unescape(cookie.substr(cookie.indexOf('=') + 1, cookie.length - cookie.indexOf('=') + 1));
    }
    else {
        return null;
    }
}
/*
 * WebFXTreeAbstractNode class
 */
function WebFXTreeAbstractNode(sText, sAction, sTarget) {
    this.childNodes = [];
    this.id = webFXTreeHandler.getId();
    this.text = sText || webFXTreeConfig.defaultText;
    this.action = sAction || webFXTreeConfig.defaultAction;
    this.targetWindow = sTarget || webFXTreeConfig.defaultTarget;
    this._last = false;
    webFXTreeHandler.all[this.id] = this;
}
WebFXTreeAbstractNode.prototype.add = function (node) {
    node.parentNode = this;
    this.childNodes[this.childNodes.length] = node;
    var root = this;
    if (this.childNodes.length >= 2) {
        this.childNodes[this.childNodes.length - 2]._last = false;
    }
    while (root.parentNode) {
        root = root.parentNode;
    }
    if (root.rendered) {
        if (this.childNodes.length >= 2) {
            document.getElementById(this.childNodes[this.childNodes.length - 2].id + '-plus').src = ((this.childNodes[this.childNodes.length - 2].folder) ? webFXTreeConfig.tMinusIcon : webFXTreeConfig.tIcon);
            if (this.childNodes[this.childNodes.length - 2].folder) {
                this.childNodes[this.childNodes.length - 2].plusIcon = webFXTreeConfig.tPlusIcon;
                this.childNodes[this.childNodes.length - 2].minusIcon = webFXTreeConfig.tMinusIcon;
            }
            this.childNodes[this.childNodes.length - 2]._last = false;
        }
        this._last = true;
        var foo = this;
        while (foo.parentNode) {
            for (var i = 0; i < foo.parentNode.childNodes.length; i++) {
                if (foo.id == foo.parentNode.childNodes[i].id) {
                    break;
                }
            }
            if (++i == foo.parentNode.childNodes.length) {
                foo.parentNode._last = true;
            }
            else {
                foo.parentNode._last = false;
            }
            foo = foo.parentNode;
        }
        document.getElementById(this.id + '-cont').insertAdjacentHTML("beforeEnd", node.toString());
        if ((!this.folder) && (!this.openIcon)) {
            this.icon = webFXTreeConfig.folderIcon;
            this.openIcon = webFXTreeConfig.openFolderIcon;
        }
        this.folder = true;
        this.indent();
        this.expand();
    }
    return node;
}
WebFXTreeAbstractNode.prototype.toggle = function () {
    if (this.folder) {
        if (this.open) {
            this.collapse();
        }
        else {
            this.expand();
        }
    }
}
WebFXTreeAbstractNode.prototype.select = function () {
    document.getElementById(this.id + '-anchor').focus();
}
WebFXTreeAbstractNode.prototype.focus = function () {
    webFXTreeHandler.selected = this;
    if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) {
        document.getElementById(this.id + '-icon').src = this.openIcon;
    }
    document.getElementById(this.id + '-anchor').style.backgroundColor = 'highlight';
    document.getElementById(this.id + '-anchor').style.color = 'highlighttext';
    document.getElementById(this.id + '-anchor').focus();
}
WebFXTreeAbstractNode.prototype.blur = function () {
    if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) {
        document.getElementById(this.id + '-icon').src = this.icon;
    }
    document.getElementById(this.id + '-anchor').style.backgroundColor = 'transparent';
    document.getElementById(this.id + '-anchor').style.color = 'menutext';
}
WebFXTreeAbstractNode.prototype.doExpand = function () {
    if (webFXTreeHandler.behavior == 'classic') {
        document.getElementById(this.id + '-icon').src = this.openIcon;
    }
    if (this.childNodes.length) {
        document.getElementById(this.id + '-cont').style.display = 'block';
    }
    this.open = true;
    webFXTreeHandler.cookies.setCookie(this.id.substr(18, this.id.length - 18), '1');
}
WebFXTreeAbstractNode.prototype.doCollapse = function () {
    if (webFXTreeHandler.behavior == 'classic') {
        document.getElementById(this.id + '-icon').src = this.icon;
    }
    if (this.childNodes.length) {
        document.getElementById(this.id + '-cont').style.display = 'none';
    }
    this.open = false;
    webFXTreeHandler.cookies.setCookie(this.id.substr(18, this.id.length - 18), '0');
}
WebFXTreeAbstractNode.prototype.expandAll = function () {
    this.expandChildren();
    if ((this.folder) && (!this.open)) {
        this.expand();
    }
}
WebFXTreeAbstractNode.prototype.expandChildren = function () {
    for (var i = 0; i < this.childNodes.length; i++) {
        this.childNodes[i].expandAll();
    }
}
WebFXTreeAbstractNode.prototype.collapseAll = function () {
    if ((this.folder) && (this.open)) {
        this.collapse();
    }
    this.collapseChildren();
}
WebFXTreeAbstractNode.prototype.collapseChildren = function () {
    for (var i = 0; i < this.childNodes.length; i++) {
        this.childNodes[i].collapseAll();
    }
}
WebFXTreeAbstractNode.prototype.indent = function (lvl, del, last, level) {
    /*
     * Since we only want to modify items one level below ourself,
     * and since the rightmost indentation position is occupied by
     * the plus icon we set this to -2
     */
    if (lvl == null) {
        lvl = -2;
    }
    var state = 0;
    for (var i = this.childNodes.length - 1; i >= 0; i--) {
        state = this.childNodes[i].indent(lvl + 1, del, last, level);
        if (state) {
            return;
        }
    }
    if (del) {
        if (level >= this._level) {
            if (this.folder) {
                document.getElementById(this.id + '-plus').src = (this.open) ? webFXTreeConfig.lMinusIcon : webFXTreeConfig.lPlusIcon;
                this.plusIcon = webFXTreeConfig.lPlusIcon;
                this.minusIcon = webFXTreeConfig.lMinusIcon;
            }
            else {
                document.getElementById(this.id + '-plus').src = webFXTreeConfig.lIcon;
            }
            return 1;
        }
    }
    var foo = document.getElementById(this.id + '-indent-' + lvl);
    if (foo) {
        if ((del) && (last)) {
            foo._last = true;
        }
        if (foo._last) {
            foo.src = webFXTreeConfig.blankIcon;
        }
        else {
            foo.src = webFXTreeConfig.iIcon;
        }
    }
    return 0;
}
/*
 * WebFXTree class
 */
function WebFXTree(sText, sAction, sBehavior, sIcon, sOpenIcon) {
    this.base = WebFXTreeAbstractNode;
    this.base(sText, sAction);
    this.icon = sIcon || webFXTreeConfig.rootIcon;
    this.openIcon = sOpenIcon || webFXTreeConfig.openRootIcon;
    /* Defaults to open */
    this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18, this.id.length - 18)) == '0') ? false : true;
    this.folder = true;
    this.rendered = false;
    if (!webFXTreeHandler.behavior) {
        webFXTreeHandler.behavior = sBehavior || webFXTreeConfig.defaultBehavior;
    }
    this.targetWindow = 'right';
}
WebFXTree.prototype = new WebFXTreeAbstractNode;
WebFXTree.prototype.setBehavior = function (sBehavior) {
    webFXTreeHandler.behavior = sBehavior;
};
WebFXTree.prototype.getBehavior = function (sBehavior) {
    return webFXTreeHandler.behavior;
};
WebFXTree.prototype.getSelected = function () {
    if (webFXTreeHandler.selected) {
        return webFXTreeHandler.selected;
    }
    else {
        return null;
    }
}
WebFXTree.prototype.remove = function () {
}
WebFXTree.prototype.expand = function () {
    this.doExpand();
}
WebFXTree.prototype.collapse = function () {
    this.focus();
    this.doCollapse();
}
WebFXTree.prototype.getFirst = function () {
    return null;
}
WebFXTree.prototype.getLast = function () {
    return null;
}
WebFXTree.prototype.getNextSibling = function () {
    return null;
}
WebFXTree.prototype.getPreviousSibling = function () {
    return null;
}
WebFXTree.prototype.keydown = function (key) {
    if (key == 39) {
        this.expand();
        return false;
    }
    if (key == 37) {
        this.collapse();
        return false;
    }
    if ((key == 40) && (this.open)) {
        this.childNodes[0].select();
        return false;
    }
    return true;
}
WebFXTree.prototype.toString = function () {
    var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this)\">";
    str += "<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open) ? this.openIcon : this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" target=\"" + this.targetWindow + "\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\">" + this.text + "</a></div>";
    str += "<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open) ? 'block' : 'none') + ";\">";
    for (var i = 0; i < this.childNodes.length; i++) {
        str += this.childNodes[i].toString(i, this.childNodes.length);
    }
    str += "</div>";
    this.rendered = true;
    return str;
};
/*
 * WebFXTreeItem class
 */
function WebFXTreeItem(sText, sAction, eParent, sIcon, sOpenIcon) {
    this.base = WebFXTreeAbstractNode;
    this.base(sText, sAction);
    /* Defaults to close */
    this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18, this.id.length - 18)) == '1') ? true : false;
    if (eParent) {
        eParent.add(this);
    }
    if (sIcon) {
        this.icon = sIcon;
    }
    if (sOpenIcon) {
        this.openIcon = sOpenIcon;
    }
}
WebFXTreeItem.prototype = new WebFXTreeAbstractNode;
WebFXTreeItem.prototype.remove = function () {
    var parentNode = this.parentNode;
    var prevSibling = this.getPreviousSibling(true);
    var nextSibling = this.getNextSibling(true);
    var folder = this.parentNode.folder;
    var last = ((nextSibling) && (nextSibling.parentNode) && (nextSibling.parentNode.id == parentNode.id)) ? false : true;
    this.getPreviousSibling().focus();
    this._remove();
    if (parentNode.childNodes.length == 0) {
        parentNode.folder = false;
        parentNode.open = false;
    }
    if (last) {
        if (parentNode.id == prevSibling.id) {
            document.getElementById(parentNode.id + '-icon').src = webFXTreeConfig.fileIcon;
        }
        else {
        }
    }
    if ((!prevSibling.parentNode) || (prevSibling.parentNode != parentNode)) {
        parentNode.indent(null, true, last, this._level);
    }
    if (document.getElementById(prevSibling.id + '-plus')) {
        if (nextSibling) {
            if ((parentNode == prevSibling) && (parentNode.getNextSibling)) {
                document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.tIcon;
            }
            else if (nextSibling.parentNode != prevSibling) {
                document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.lIcon;
            }
        }
        else {
            document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.lIcon;
        }
    }
}
WebFXTreeItem.prototype._remove = function () {
    for (var i = this.childNodes.length - 1; i >= 0; i--) {
        this.childNodes[i]._remove();
    }
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this.id == this.parentNode.childNodes[i].id) {
            for (var j = i; j < this.parentNode.childNodes.length; j++) {
                this.parentNode.childNodes[i] = this.parentNode.childNodes[i + 1]
            }
            this.parentNode.childNodes.length = this.parentNode.childNodes.length - 1;
            if (i + 1 == this.parentNode.childNodes.length) {
                this.parentNode._last = true;
            }
        }
    }
    webFXTreeHandler.all[this.id] = null;
    if (document.getElementById(this.id)) {
        document.getElementById(this.id).innerHTML = "";
        document.getElementById(this.id).removeNode();
    }
}
WebFXTreeItem.prototype.expand = function () {
    this.doExpand();
    document.getElementById(this.id + '-plus').src = this.minusIcon;
}
WebFXTreeItem.prototype.collapse = function () {
    this.focus();
    this.doCollapse();
    document.getElementById(this.id + '-plus').src = this.plusIcon;
}
WebFXTreeItem.prototype.getFirst = function () {
    return this.childNodes[0];
}
WebFXTreeItem.prototype.getLast = function () {
    if (this.childNodes[this.childNodes.length - 1].open) {
        return this.childNodes[this.childNodes.length - 1].getLast();
    }
    else {
        return this.childNodes[this.childNodes.length - 1];
    }
}
WebFXTreeItem.prototype.getNextSibling = function () {
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this == this.parentNode.childNodes[i]) {
            break;
        }
    }
    if (++i == this.parentNode.childNodes.length) {
        return this.parentNode.getNextSibling();
    }
    else {
        return this.parentNode.childNodes[i];
    }
}
WebFXTreeItem.prototype.getPreviousSibling = function (b) {
    for (var i = 0; i < this.parentNode.childNodes.length; i++) {
        if (this == this.parentNode.childNodes[i]) {
            break;
        }
    }
    if (i == 0) {
        return this.parentNode;
    }
    else {
        if ((this.parentNode.childNodes[--i].open) || (b && this.parentNode.childNodes[i].folder)) {
            return this.parentNode.childNodes[i].getLast();
        }
        else {
            return this.parentNode.childNodes[i];
        }
    }
}
WebFXTreeItem.prototype.keydown = function (key) {
    if ((key == 39) && (this.folder)) {
        if (!this.open) {
            this.expand();
            return false;
        }
        else {
            this.getFirst().select();
            return false;
        }
    }
    else if (key == 37) {
        if (this.open) {
            this.collapse();
            return false;
        }
        else {
            this.parentNode.select();
            return false;
        }
    }
    else if (key == 40) {
        if (this.open) {
            this.getFirst().select();
            return false;
        }
        else {
            var sib = this.getNextSibling();
            if (sib) {
                sib.select();
                return false;
            }
        }
    }
    else if (key == 38) {
        this.getPreviousSibling().select();
        return false;
    }
    return true;
}
WebFXTreeItem.prototype.toString = function (nItem, nItemCount) {
    var foo = this.parentNode;
    var indent = '';
    if (nItem + 1 == nItemCount) {
        this.parentNode._last = true;
    }
    var i = 0;
    while (foo.parentNode) {
        foo = foo.parentNode;
        indent = "<img id=\"" + this.id + "-indent-" + i + "\" src=\"" + ((foo._last) ? webFXTreeConfig.blankIcon : webFXTreeConfig.iIcon) + "\">" + indent;
        i++;
    }
    this._level = i;
    if (this.childNodes.length) {
        this.folder = 1;
    }
    else {
        this.open = false;
    }
    if ((this.folder) || (webFXTreeHandler.behavior != 'classic')) {
        if (!this.icon) {
            this.icon = webFXTreeConfig.folderIcon;
        }
        if (!this.openIcon) {
            this.openIcon = webFXTreeConfig.openFolderIcon;
        }
    }
    else if (!this.icon) {
        this.icon = webFXTreeConfig.fileIcon;
    }
    var label = this.text;
    label = label.replace('<', '<');
    label = label.replace('>', '>');
    var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this)\">";
    str += indent;
    str += "<img id=\"" + this.id + "-plus\" src=\"" + ((this.folder) ? ((this.open) ? ((this.parentNode._last) ? webFXTreeConfig.lMinusIcon : webFXTreeConfig.tMinusIcon) : ((this.parentNode._last) ? webFXTreeConfig.lPlusIcon : webFXTreeConfig.tPlusIcon)) : ((this.parentNode._last) ? webFXTreeConfig.lIcon : webFXTreeConfig.tIcon)) + "\" onclick=\"webFXTreeHandler.toggle(this);\">"
    str += "<img id=\"" + this.id + "-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open) ? this.openIcon : this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" target=\"" + this.targetWindow + "\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\">" + label + "</a></div>";
    str += "<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open) ? 'block' : 'none') + ";\">";
    for (var i = 0; i < this.childNodes.length; i++) {
        str += this.childNodes[i].toString(i, this.childNodes.length);
    }
    str += "</div>";
    this.plusIcon = ((this.parentNode._last) ? webFXTreeConfig.lPlusIcon : webFXTreeConfig.tPlusIcon);
    this.minusIcon = ((this.parentNode._last) ? webFXTreeConfig.lMinusIcon : webFXTreeConfig.tMinusIcon);
    return str;
}